"We are dismayed that there is still no memorial stone," said Astor's grandson, Philip Marshall.
Marshall's 83-year-old father, Anthony, pleaded not guilty Tuesday to an indictment accusing him of preying on his Alzheimer's-stricken mother by looting her $189 million estate.
An attorney for Anthony Marshall said his client, who is responsible for Astor's burial arrangements, had already ordered a pink headstone in honor of the grande dame of New York philanthropy.
"It took time to find a stone of suitable quality and of this color," Warner said. He added that no family members had contacted his client about the headstone.
"Contacting the media on this non-issue is a sign of malice, not an indication of any real concern or interest," Warner said.
Those who were close to Astor say that she should be remembered.
"The lady should have a statue put up in Central Park," said Scott Hamor, who tended her gardens at one estate.
Astor died Aug. 13 at the age of 105.
